国际货币基金组织：整合碎片化网络：货币和支付互操作性的价值（英文版）

Payments technologies pose an economic dilemma: network effects can lead to a small number of dominant platforms, but efforts to increase choice can risk market fragmentation. We examine whether interoperability can help resolve this tension, using data from India’s Unified Payments Interface—the world’s largest fast payment system by volume—as well as from a major pre-existing fintech firm. When the two networks became interoperable, overall usage of digital payments rose. Consistent with a